Pyrophorous lighter.



0. SOHLIGK.

PYROPHOROUS LIGHTER APPLICATION FILED MAILS, 1913.

LOQLQG'X, Patented Mar. 31, 1914.

OTTO SCI-ILICK, OF BERLIN, GERMANY.

rraor'noaoos LIGHTER.

Learner.

Specification of Letters latent.

lPat'ented Mar. 31, 1914i.

Application filed March 3, 1913. Serial No. 751,831.

- To all whom it may concern rubbing surface,

Be it known that I, Or'ro SCHLIOK, of Berlin, Germany, a subject of the King of Saxony, and whose po-st-oflice address is Steinmetzstrasse 31, in the city of Berlin, Kingdom'of Prussia, German Empire, have invented a new and useful Pyrophoro-us Lighter, of which the following is a specification.

This invention relates to pyrophorous lighters, that is to say, to lighters in which sparks are produced by rubbing a spark producing material, for instance cerium iron or the like and a wick impregnated witlainflammable liquid such as benzin or the like, or a piece of tinder is lighted.

This invention relates more particularly to an improved construction of the rubbing surface in such lighters.

This improvement chiefly consists in the rubbing. surface being formed in the shape of grooves, which has the advantage that the sheaf of sparks is held together better, and therefore lights more easily, as well as that the rubbed sparks are more securely guided so as to prevent sliding off laterally.

Other features relate to the construction of the rubbing surface so that it is rotatable or reversible for the purpose of increasing the length of life, and further that for the purpose of facilitating interchangeability or reversibility, the rubbing surface is secured in the casing by a spring support.

Figure 1. of the accompanying drawing shows a lighter according to this invention in elevation, Fig. 2 shows in elevation a construction by way of example of the spring support, Fig. 3 is a plan of the lighter shown in Fig. 1, while Figs. 4-7 are plans of modified constructions of the rubbing surface. Y

In Fig. 1, a is the receiver or casing of the lighter, which receives in the known manner an ignition rod b which can be withdrawn and rubbed against the surface arranged laterally onthe casing. For that purpose, to the bottom end of the ignition rod is secured in any suitable manner, a piece a of spark producing material, for inthe like, surrounded by a wick d or a piece of tinder which, on

corrugated spring, support the rubbing sur lighter contains the spark the ignition rod being rubbed against the is ignited. According to this invention, the rubbing surface in the construction shown in Figs. 13, consists of two round rods 6 with rough surfaces, preferably like those of a file. In the latter case, it is preferable to arrange the oblique direction of the teeth-of one cylindrical file in the opposite direction to that of the other file, so that sparks are produced both when rubbing the ignition rod downward or upward. Owing to the round rods 0 leaving between them a groove or channel, a lateral sliding off of the ignition rod and damage to the casing is avoided, and the sheaf of sparks is held together better. The round bars or rods 6 are preferably secured by a 3, pressing the round rods in a springy manneragainst the bent out edges 2' of the casing a and the same time enabling the two round rods to be turned relatively to each other when face is worn, so that any yet unused portions of the surface of the rods form the rubbing, surface. I

In the modified construction shown in Fig. 4:, the rods 6 forming the rubbing surface, are of triangular, instead of circular, cr'osssection, so that a groove or channel is again produced in the center, and prevents the ignition rod from sliding. off laterally.

These triangular rods 6 cannot be turned, but they can be pulled out upward and then turned, so that the outer which have not yet 'bing surface.

In Fig. 5, the rods 0 instead of being of triangular shape, have a lozenge shape, so that by changing the rods, four unused rub,- bing surfaces can be exchanged.

-I Figs. bing surface consists either of two triangular rods 6* or of one trough-shaped rod 0". In these two constructions, there is only the advantage of avoiding lateral sliding off and holding together the sheaf of sparks, surface is used up,

while after the rubbing a new rod must be introduced. v In the foregoingdescription, it has been assumed that the ignition rod 7) of the producing body 0, while the rubbing surface formed by the rods e or e e e e is a rough surface of steel or the like. It is obvious that the arrangement could be reversed. The ignition rod 7) with which the rubbing instead of containing a body of spark-pro ducing material 0, can contain a sharpedged bar or a sleeve of steel, and the\ rods -e. forming the rubbing surface, can be h, Figs. 2 and.

thus securlng them, while at 6 and 7, the groove-shaped rub-' surface is rubbed,

triangular surfaces been used, form the rubrods of spark producing material such as cerium-iron or the like. This reversed arrangement does not alter the substance of the invention.

What I claim, and desire tosecure by Letters Patent of the United States, is

' In an ignition apparatus in which sparks are produced by rubbing a rod against alrubbing surface, the combination of a casing, an ignition rod removably inserted in the casing, said ignition rod comprising a cerium-iron part, and a steel rubbing surface arranged on the casing, said rubbing surface being depressed in part to form a guiding groove for said ignition rod. 2. In an 7 ignition apparatus in which sparks are produced by rubbing a rod against a rubbing surface, the combination of a casing, an ignition rod removably inserted in the'casing, said ignition rod comprising a cerium-iron part, and a transversely concave steel rubbing surface arranged on the casing.

a grooved rubbing grooved rubbing surface yieldingly in its seating, substantially as set. forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

OTTO SCHLIGK.

. Witnesses:

'WOLDEMAR HAU'PT, HENRY HASPER. 

